Mark Gregory Horo[1] is a New Zealand rugby league coach and former footballer of the 1980s and 90s. A New Zealand international representative, he played club football in New Zealand for Te Atatu and in Australia for Parramatta and Wests before finishing his career back in Auckland with the Warriors. Horo currently coached in New South Wales and is the co-coach of the New Zealand Māori team.

Horo played 16 tests for the Kiwis over a ten-year period. He had stunning start to his international career starring in a 13-6 upset win over Australia. He held his Kiwi spot in 1988 with his brother Shane Horo playing in the 66-14 win over Papua New Guinea and the 12-10 win over Great Britain at the Addington Show Grounds in Christchurch. The following year he played against Australia before missing the 1989 Kiwi Tour.

He regained his Kiwi spot in 1990 under a new Kiwi coach, however for the next four seasons injuries and being out of favour with Kiwi coaches resulted in him not being selected, including missing the Kiwi tour in 1993 (hindsight suggests he and other shock omission Tony Iro should have been selected).

Having difficulties at Parramatta, he moved to Western Suburbs. He played superbly and in 1995 regained his test jersey playing in all three world cup internationals for the kiwis. He was signed by the warriors on a 2-year contract after which he retired.